I'm sorry that's a really awful experience. I've never been to Merritt and don't have any advice regarding them. I just wanted to highly recommend the Y of Central Maryland. There are many locations throughout the city and county and each one I've been to is 10/10 amazing in every way. Very welcoming and inclusive people and atmosphere. I cannot comment on race specifically, but my kids were born with birth defects/ genetic diagnoses and no one has ever made us feel uncomfortable. I see a lot of families that bring their kids and adult family members of different needs/abilities there and everyone is very comfortable and the Y staff are so accommodating. So like I said, I can't comment on race issues (being white and all) but feel like their inclusiveness regarding my personal experiences is a good sign in that respect. The Y is also very affordable. Family membership is $100 and it includes the pool and a lot of classes and free childcare while you workout (in case you have little ones). You said in another comment you play basketball. I know that some locations do have nice courts and pickup basketball. Ample parking in their lots too, nobody would look at you weird for showing up and parking your scooter. I never had any issues signing up or checking in at the front desk either. Best of luck.