Is MEXC banned in USA?

Could you clarify, is the cryptocurrency exchange platform MEXC prohibited for use in the United States? I've heard conflicting reports and I'm trying to understand the legal standing of this platform in the US market. Given the complexities of cryptocurrency regulations worldwide, it's crucial for me to have a clear understanding of the situation. If MEXC is indeed banned in the US, what are the specific reasons for this ban? And are there any alternative platforms that US investors can use to trade cryptocurrencies safely and legally?