Unrelated responses. Texting this way normal?

This is going to be a bit of a messy post cause it’s partly a rant, I apologize in advance…

I know texting is not the best way of communicating and conversation can get choppy but I’ve found people, on occasion, to not reply or even just emote to my messages and then once a certain amount of time has passed they respond with something unrelated.

I know everyone has their different reasons and there is always different circumstances (group chats vs personal dms, etc.) but my one friend mentioned they think it’s normal.

I understand sometimes not really having much of a response or not having much to say but I also sometimes feel like that’s a bit of an excuse too?

It’s polarizing when you send happy loving message or send a picture of something cute to a friend/SO and then hours later they send you a sad song or a post about a video game, or a complaint about their work life, completely off topic. It’s understandable to be in different moods/places in life… but no one really acknowledges each other they just send things.

it almost feels like dms might as well be a social media wall for posting stuff but slightly more personal/mundane stuff cause your comfortable and knowing who is seeing it.

I don’t even care much about how long it takes to respond, I understand the people in my life have different schedules, it’s the fact that no one engages with the messages left waiting for a reply, everyone just moves on to what their current in the moment message is, there’s no engaging with each other … it feels like I might as-well be talking to myself.

I guess this is why people like quick responses cause there’s less room for people to switch topics if they are already messaging back and forth in 3 min intervals.

Sometimes I just find something cool I want to share or I see something that reminds me of someone and send it knowing they are busy cause I figure they can just respond to it later, bare minimum an emote to the last thing I sent, but there’s never a smooth transition, it just feel like I’m being blatantly ignored.

Am I in the wrong? Is it really socially acceptable to just not respond to something trusting that the person saw it just didn’t really have a response?

This all feels very dry and isolating.