I was told to leave a 21+ pool this weekend over my swimsuit?

I’m a 22 year old female, and I consider myself a professional female. Over this Labor Day weekend, my two close (female) friends and I went to a hotel/resort that had a casino and hotel. The hotel was for 21 and older, and that was the way for the entire property. My friends and I rented a pool cabana with a day bed to lay around and relax in, talk about our careers and enjoy a drink. We got settled in and I had someone from the hotel come up to me after about 3 hours and was told that I was not dressed appropriately and needed put on something less revealing or leave the pool area. This pool area is 21+. There were maybe 12 other people there. Two older couples and another group of older females. (Below are photos of the actual swimsuit, not me.) My friends are wearing almost similar swimsuits, although I will openly admit mine is more revealing. So because this was sold to me as a 21+ pool, I didn’t have any swimsuits that covered more. I ended up leaving to go to target and get something different. I want to know, what would you have done or should I speak up at all? Like I said, my friends were similarly dressed, but I feel like I was target specifically. Any insight or ideas would be appreciated.
I was told to leave a 21+ pool this weekend over my swimsuit?
I was told to leave a 21+ pool this weekend over my swimsuit?
Updates
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I want to make one thing super clear before anyone else decides they want to judge me. This was an adult pool, only those 21 and older can to. With that; I wouldn’t have worn this swimsuit to a public pool with families, children etc. I’m a fairly intelligent female, I wouldn’t put myself in a position that would jeopardize my integrity or my career.
I was told to leave a 21+ pool this weekend over my swimsuit?
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