Being for, against or neutral about something that is happening doesn’t stop it from happening.
FTFY
Having an opinion that aligns with your beliefs is great. Israel should be ashamed of what they have done, and their leaders should be tried at the Hague for crimes against humanity.
That happens to be my opinion. If someone rolled up and we started talking about it and they said they didn't really know much about it, in the past that would be a surprise perhaps, and maybe a conversation would start. Now if someone said that there would be fuckwits calling them monsters while they pick Cheetos out if their unwashed navels and congratulate themselves for helping to stop a genocide.
Or to rephrase an old classic: opinions are like assholes, people love to spread them online and act like it means something.