Can't say I've seen any particular increase in BLM or MAGA clothing on the trails, but living in the Bay Area means the MAGA crowd are few and far between (plus I don't generally care what people are wearing). Only some chalk BLM messages on the trails I use for my morning bike rides.
In general, my biggest pet peeve is people who blare their music when hiking. Earphones, people! Not everyone enjoys the same music.
Then there's the people who take up the entire width of the trail with their group. Especially now with COVID-19, keeping to one side or the other (generally to your right) is best for all involved to pass as far apart as possible.
