Problem is aviation is high profile, many voters do not fly including because of cost.
Companies like ZeroAvia are peddling the 2.0C assumption which even the infamous Phil Jones of CRU leak infamy admits is nothing but an arbitrary assumption by someone.
Eco-activists are like that - pulling notions out of thin air, evading that in over half a century of Chicken Little behaviour none of their dire predictions has come true. Nil, nada, zip - None. But like religious doomsday preachers they try to slide the date of doom.