I read all the replies from you, but not all of the other comments.
I honestly think they just wanted a no fuss wedding so they had it. That’s all. Nothing you said makes me think he’s looking down on you, unless you have missed things out.
I have felt more 'snubbed' by son in recent years as he seems to think he's above where he came from now and this adds to the feeling that he feels we are beneath him and he can't be bothered with us anymore.
Interestingly, I saw this recently on Instagram from Matt Haig, the author. I read it and thought ‘oh how fabulous. If I ever get married again I’d like that.’ And that’s all I thought. No ‘his poor parents’, no ‘her poor parents’. It’s just a short amount of time, nothing more. We didn’t even get photos of our very short ceremony. To us, it was just admin, like applying for a new bank account or something. Some people dress up, some don’t. It’s not a snub to you, it’s just a reflection of their feelings on weddings, big events, expense, friends in different areas, putting on a ‘show’, and I wouldn’t look for a deeper meaning in it.
If you can, it might be helpful to have one or two counselling sessions. I say that because I had some last year and talking to someone who has no personal connection to you or anyone you’re talking about is really helpful, I hadn’t realised that but now I’ve experienced it I think you might find it helpful. They ask the questions and somehow you yourself arrange your thoughts into a more helpful order.
Oh the image is hidden right now apparently, sorry.
Here is a link, maybe that will work?
https://www.instagram.com/share/_liKpDr_D