how long will it take to be at plant milk's level of emissions?
It possibly never have such low emissions as plant based milk production. Regardless, plant production needs nitrogen.
i think the milk production increase depends on the countr
Milk is mostly important in poor countries, since it is a nutritious cheap food.
i know here a huge chunk of people have switched to oat barista milk for coffee
No data here, but I have the impression that coffee production has a greater impact than milk production.
if cheese is the only dairy product you eat
I barely eat any cheese, but I fail to understand how that matters.
yes, reduced dairy consumption is good unless we get the emissions of dairy production in control.
No doubts it's good. I'm asking how good it is and whether it even matters.
even small changes in a variety of things really does add up
Policy changes matter way more than what individuals can do on their own, even if it was the case that people were to get organized and make such changes on mass.
if you combine this with taking the train sometimes where it makes sense
Agreed, but rather than criticizing people for not taking trains it would be better to find a way to make it easier for people to take a train. If you have free public transport which takes you from your house to wherever you need to go you're going to take the train. If the railway is one hour away and the train ride is two hours can you really tell someone not to use their car? I don't have a car because I don't need one, but plenty people do.
The changes you advise on doing are minor nuisances that rich people in rich countries can afford to make. The effect of such changes is minor. I see the good intentions, but this is hypocritical since those same people are the ones who most pollute.