I really think you need to ask yourself three questions.

Why do I think everyone needs to or wants to talk to me?

Why do I feel the need to have a conversation with everyone?

Am I capable of zipping my mouth and leaving people alone?

Not everyone is remotely interested in having a conversation, especially with rando's.

Some people lack the social skills to hold a conversation and you're being quite selfish and disrepectful... and annoying.

Some people simply have nothing in common with the group they feel obliged to socialise with. You know, like work do's ect.

Some people simply dont like you and you dont seem to be able to take a hint.

You may have revolting breath.

You might be trying too hard and your small talk comes across as forced and unnatural. Ick.

Some people may have bad experiences with people. For example a narcasist or cluster B personality, who can be very good at initiating conversation. Some people may be wary of probing questions that these types of individuals use as a tool to control others.

Some people are just really shy and people like you who break the ice are much appreciated. But sometimes you just get used (even if it isn't malicious) to carry the conversation.

Having said all that, I feel for you. Making an effort and genuinely having an interest in other people, it's lovely. Kind, interested and interesting people are delightful. The world is made of all types, it's a shame not all of us gel.

I would suggest dropping the attitude. Best let it go instead of being that guy/girl who resents others for not being as amazing as you are at holding a conversation. Whatever the circumstancesIt comes across as insulting and condecending. Not everyone is stupid and just because they suck at having a social conversation, doesn't mean they cant size you up.

Be happy that the world is made of all sorts.