I am generally not inclined to engage with comments like this, but in this case I will: I am a pragmatist and not an absolutist, stopping all tourism is obviously a non-starter, so are other things that would be high impact like making everyone be vegan or banning gasoline outright. Burning tons of fuel to haul snow to a place that no longer gets enough snow because of how much fuel we've burned is, in my opinion... not in that category. I also think that people do not have to be "perfect" themselves before advocating for change.
On the topic of wilderness trips: I am of the mind that many people are totally disconnected from the natural world these days, and people are not generally inclined to care about things in the abstract. Getting out in nature has been demonstrated to promote environmentalism^, so if people are going to be traveling anyway, these are trips that could have some impact.
^ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8305895/