Obviously not buying from them would be the best option, but we all know that's not going to happen. So instead of relying on the customers to somehow do a dogecoin level of unity, companies could strike back with a plan instead of just biting their thumb. 

It's in a issue customers themselves created so I can only shrug. 

I personally find entertaining to see 40 years old adults ranging like pre-teens because they can't find a console. 

The best way to beat them (as a consumer) is to get to know someone at a local store. Make friends with a manager, or employee. Then, when that thing is about to launch, they will likely give you a heads up etc. Failing that, you can always just pester a local store relentlessly until the person in charge gets so sick of you, they make sure you get what you want. Either way, you win. The scalper loses.

The key though, is to avoid online shopping at all costs.

So we should expect people not to have self control???  

Usually I am not looking for a bargain at these stores, but rather something specific that can't be bought brand new.
I.E. Recently purchased a 4:3 aspect 1280x1024 LED LCD monitor for $5 AUD as it should be a good pairing with the old 3dfx voodoo 2 PC I have as CRT's don't exist in any form. (Although I might try and source a second Voodoo 2 for SLI.)

But, they are using predatory pricing so they lost me as a customer out of principle. Got to stand with my morals, I believe these stores are needed to support lower income families... And they have lost focus of that in my opinion.

Ironically this is how I got the Xbox Series X and Playstation 5 on release day, the manager personally bought and set aside the consoles just for me.
I was loyal to the store, plus we all got to know each other on a first-name basis. - Also helps that I had to do a few legitimate rescues at the front of their store over the years which probably put me in good standing.

Even bought them all a round of coffee's a few times.
It's the small things that can make someones day.

The best way to fight scalpes is to not be in a hurry to buy anything. FOMO is the scalpers' prime tool above anything else.

Why would the "companies strike back"?  If scalpers are buying up all available stock the companies have made their money and the scalpers have now assumed the risk of an item not selling at a profit.

Personally I got away from day one console purchases back in the PS2 era with the exception of the Switch, Wii, and WiiU.  Bought the PS2 once the slim version came out.  Bought the PS3 off Ebay with extra controllers and lots of games for way less than MSRP (used is risky but that PS3 is still kicking). The PS4s (I've bought 3 ) I've bought new but long after they were readily available at retail.  Since I couldn't find a PS5 and my Vader PS4 bit the dust i bought a PS4Pro used.  When the PS5 is a normal sight in retail I'll probably wait for a Black Friday sale and buy one for the kids and maybe one for me. Personally I will not pay scalper prices, hell I don't even like paying full MSRP.

How did you conclude to that.

Bruh plz use common sense, research or at least read before giving an opinion. Companies sell their consoles at a loss, Microsoft hasn't been able to profit from the hardware alone, Sony only starts to profit after a while, and Nintendo sold some at a loss as well in the past. The reason they do this is to create a bigger userbase, it's a strategical loss. They can recoup the loss by selling software, subscription service, etc. It was said that Sony needed to sell 10 games per console to recoup the loss back in the PS3 era. The reason for this being the PS3 sold at a huge loss. So with that in mind, obviously companies aren't fond of scalpers either. Not only does it limit the userbase, but it also stays untouched. Scalpers aren't making companies money, in fact the company are only losing money. Plus if people buy from the scalpers, that's extra potential money gone that could have gone to their games. 

Revenue does not equal profit. You can have the highest revenue in the world, but your company could still be failing. 

Not paying what the scalpers are asking for.