Sega can only return to hardware business if it partnered or bought out by a tech giant like Apple or Samsung. Kinda wish Apple bought them out though, with a company like that it'd probably end Sony's console reign. Apple console would still outsell if it cost $100 more. Apple's billions would make every Sega classic come back and ensure all the 3rd party deals from Activision etc.
I agree with your point that for any Sega console to exist and make it in this market, they should be bought out by a tech gian. I don't agree with the Apple part, Apple would make it an overpriced turd console, like every product that they make. Samsung would be a way better option.