My partner doesn't respect academia

I've struggled with some things that my partner has been saying since starting my PhD.

It doesn't really matter what it is, but when I talk about academia or colleagues, he doesn't seem to have much respect for it as someone who grew up working class.

Just as an example, I was having a little rant today about how academia doesn't always suit people wanting a family, setting up a home, or generally needing some stability due to the nature of someone needing to commit to finding competitive, temporary, fixed-term positions for years until they're experienced enough for a professorship, and he goes "Well that's what plumbers and carpenters do all the time, you academics just think a lot of yourself". The same happens when I say I'm stressed, or working a lot, it'll be a comment (albeit, meant to be a jokey one) about how I 'don't have a real job' and the conversation is shut down.

I know academia works for privileged people, I know I'm privileged to be funded to do my research, and I know a lot of struggles aren't unique to academia, but sometimes I just want him to be proud of me and respect what I do - and come on, I just want to be able to vent about something!

Just to add: I am not from a well-off family and have no financial support outside of my funding and part-time work, so it's not a jab at me, although it often feels like it. I also go to a very well-off, fancy university, so that doesn't help.

Does anyone have any experience with this attitude to academia, either from family, friends or partners? I don't really know how to navigate it; it upsets me, but I also do understand why he struggles with the class differences.