Saying people will only change once cheap vegan replicas of everything they eat are available is creating a Catch-22. Corporations, which actually operate on a completely selfish motive of amassing as much capital as possible, are not interested in completely veganizing the food industry. Seeing how vegans are a niche in the market and many nonvegans have an adverse reaction to food labeled vegan, vegan products are a risky prospect and generally going to cater to a select few who are able to pay high prices.

We don't need cheap vegan products to eat vegan though, and unlike the market hopefully we as individuals don't do everything for completely selfish reasons. Most of the cheapest culinary staples are vegan, cutting out animal products is actually cheaper even with all the subsidies those industries are given. You do not need to be a star chef to make tasty beans, beans have been a staple in culinary traditions for centuries.

I can agree there might be an instance where hunting as an intervention is ecological. It's interesting though that deer always seem to get brought up when we actually breed additional deer to be hunted. If we are going to be advocating for hunting deer then we should at least put an end to the breeding of deer first, which itself is vegan activism. Most people hunting deer are not doing it for ideological reasons and would be against this. Also humans are the best forest killer out there, and much of that is done in the name of animal ag. If you genuinely care about forests more than the lives of individuals I'd think you'd be advocating for natalism or at least the end of humans raising livestock.

Also many of us do not get our food from hunts, we get our food from a grocer or restaurant. So the ethics of hunting is irrelevant to most people's personal choice to consume animal products.