Asking the gov to proactively shrink or limit animal products is a non-starter because there are just too many (voting) consumers who would be outraged. It would be political suicide. Same for cars. Forcing car owners out of cars would be political suicide as well.
But what I find baffling is there seems to be no chatter about the fact that the US gov gives (millions?) in subsidies to livestock farmers. And Europe gives tax breaks for “commercial” cars (mischaracterized personal cars). If the gov were to end the subsidies, there could be no reasonable complaint that the gov is interfering. Because in fact the gov would be ending their intervention.
This is why it bothers me that vegans are not vocal. They keep their head down as their taxes is used against their beliefs. Vegans should be outraged that their tax contribution is financing animal exploitation. They should be demanding the right to be vegan, which means the right to not contribute to animal exploitation. Maybe they should get a tax rebate for being vegan to effectively pull back their livestock subsidy.