So because their garbage man may be biased against them and refuse to collect their trash or some petty shit like that they should get guns to shoot them?

The Vietcong was everything but untrained. They already fought for a decade as the US entered the war. Also the war was desastrous for Vietnam still. Millions died, millions others were mutiliated or poisoned by Agent Orange. The losses on american side were small in comparison.

A lot of governments are biased against minorities like transsexuals, at the local, state or federal level. So, when those who have the weapons are biased against them, they need a way to defend themselves on their own.

Under no circumstance (except for war or prevention of mass slaughter and self defense from mortal danger) should a civilian ever fire a gun at another human being. Even if they are bullied or have less rights than a heterosexual. Not being able to marry or having to go into a certain toilet is not equal to any of those situations. With many governmenta I assume you imply Russia, Eastern Europe and other countries where bring LBQT+ isn't being penalised.

Governments at the local, state or federal level. Trash men are government employees (at the local level?) are they not?

Or were you talking about mail men? Tax collectors? Fire fighters? All people that you really won't ever need to shoot regardless of how biased they may or may not be.

Perhaps you mean cops? Cops that shoot people if they suspect them of having a gun and intending to use? You're suggesting people actually pull out a gun on those cops if they think they're being treated unfairly by them? I'll agree that US cops aren't doing as good a job as they should (not even close really), but people pulling out guns on cops is just going to make things a whole lot worse!

Protect themselves with guns? How does that even work? People stop discriminating against them just because they own guns? Nope, that won't happen. Will those being discriminated against become the bad guys if they start shooting people? Definitely!

Those seem to have turned out to be false claims:

https://everytownresearch.org/the-gun-lobbys-false-claims-about-gun-free-zones/

Either way, let me point out the futility of having a "gun free zone" in a school, when everywhere else surrounding the school isn't a gun free zone.
If you're going to do gun control it has to be done properly and thoroughly. Otherwise it's pointless. And that's an area where USA doesn't go nearly far enough. NRA spends millions every year to prevent meaningful gun control. Even defunding and forbidding research data from advocating gun control.

So basically, we don't even have the proper data to look at because NRA buries it.

This has got to be like the faultiest logic ever. If those that wanted to do hate crimes didn't have access to guns then the potential victims wouldn't need them either. It's simple really.

Same should be true for some other countries. Russia, while having a pretty high murder rate has it much lower than Brazil. For India it is barely more than a tenth of Brazils rate. And China even has a lower murder rate than Germany. All these countries are big, have a vast border, an immense coast, but seemingly they do better.

And I don't know about you but I'd be assuming someone is a terrorist if they had a gun and would be calling the police ASAP...