I certainly agree that legacy automakers are doomed by their baggage. The question is how much of this baggage is inherently bad, and how much is only bad because the leadership team doesn’t realize that ICE is an obsolete technology.
For example, Paccar, which builds Kenworth and Peterbilt trucks in the US, and DAF trucks in Europe. Their biggest weaknesses are susceptibility to a recession & losing market share to electric trucks. Tesla could use their existing assembly lines to bring the Semi to market. And, when demand for diesel trucks diminishes, more lines could be converted to electric Semi lines, rather than being idled as they would under Paccar ownership.
I think similar arguments could be made for both Ford and FCA, with their SUV & pickup truck lines. In those cases, they have more substantial risk due to legacy costs & financing arms, but they also have substantial cash hordes that could be very useful in accelerating the transition to sustainable transportation.