I agree with you on the Israel stuff. Gays over blacks? I've heard this before and I think it comes from a lack of critical thinking. Truth be told, gays were further behind than blacks. In your lifetime, have you ever been told you LEGALLY can not marry another black person? Or even a white person? GOP looks out for constitutional rights? Are you serious? The ONLY time they ever mention the Constitution is when talking about the 2nd Amendment. As a criminal defense lawyer who constantly sees what they are trying to do in removing more and more of your rights when it comes to dealing with police, that sounds incredibly ridiculous. They do look out for businesses, as far as trying to make sure that corporations are taxed as as little as possible, and they love removing regulations, which are designed to protect the public and environment.
All that to say is while the Dems certainly aren't perfect, but they are FAR better than Conservatives, unless you are a rich, white, man.