The airline thing will be interesting to watch, overseas they have some vaxxed only flights, where all passengers are proved vaccinated to purchase. Other flights are only dependent on what the entry requirements of the nation/state they are travelling to. It may come down to what the travelling public want, if they want to pay for vaxxed only flights, they might become the norm.
Are they antivaxxers or anti mandate,
Both types. True anti vaxxers are very rare though.