After reading about how Israel has treated and treats Palestinians, how can I ethically support Israel?

I support Israel and believe the country has the right to exist and I have family there, but after reading this post I’m seriously debating stopping my support for them. They have done (and continue to do) a lot of fucked up shit. I don’t think either side are good or bad, but I want to hear people’s opinions on whether I should continue to support Israel.