@Musclemanhh physical: getting an injury and being worse off than having not worked out.
psychological: not processing the grief or hurt feelings you are in the gym to distract yourself from.
To successfully stay fit for life requires balance, boundaries, and goals.
Just avoid Blacks and Browns entirely at this point. Don't even bother befriending them. Don't bother smiling at them or even acknowledging them.
All we should be doing is focusing on getting the political infrastructure in place to launch remigration or, alternatively, readying ourselves to literally fight these people off our lands.