Running and Black History Month
To say that there are people who is racist is one thing, to say it is systemic is another. You are not clear about that. Furthermore, to pick a few cases lead to bias, not to truth. What I notice, and I believe is not your case, is that people that speaks more about racism are themselves the most racist ones, reflecting that in others and alleviating their consciences.
A 300 mile training week while working full time?! Just thinking about it makes me tired!