I do not think all US brokers are scam. There must be some good brokers out there for the US citizens. Do a search and read reviews about a broker before choosing one. I am wishing you all the very best.
There are a lot of trustworthy brokers out there (many of which accept US clients, but it’s important to remember that there are scammers as well. Always do research online like you have been to avoid this, but keep in mind that some brokers may receive bad reviews that aren’t correct. For example, a new trader may lose their money and blame the broker, or someone may not understand slippage and believe the broker was wrong, etc. I think the most important thing is to look for similar comments about issues from multiple people, as this is a red flag that it’s a true problem and that you should stay away from that broker.