Hardly, Tesla has proven that they were right betting on electric being the future. SuperCruise by most accounts is ahead of "FSD" in real-world driving. GM has pivoted in less than 5 years to what it took Tesla 18 years to build.
5 years from now we can have a conversation about whether GM/Ford/Stellantis can compete or not. Saying that Tesla has some unsurmountable lead when the big 3 have literally just started releasing their first round of EVs is silly. Having test driven a Mach-E and a Model-Y, I would wager the non-tesla fanboy will choose the Mach-E every time. Nicer interior, similar enough performance, and a manufacturer that has a history of actually having parts to fix cars when something breaks. The horror stories of cars sitting for months waiting on basic parts from Tesla is enough to make me think twice about ever owning one.