Feeling deflated

I feel like he does get a say in that he is an equal parent. He’s probably heard people saying how essential nursery is etc and thinks it’s the right thing to do. So I wouldn’t dismiss him out of hand and tell him he doesn’t get a say, I’d just sit down with him and talk through the reasons that you don’t think it’s the right fit for your family. Maybe you could agree to wait until she is 3 and able to talk in more detail about what she gets up to and (assuming you’re in the UK) you would then be using funded hours rather than paying for it. I’m a SAHM and we now have our daughter (3.5) in a couple of mornings a week and she loves it. Nursery to me isn’t really about teaching, I haven’t needed any qualifications to look after my daughter at home, to me it’s about the social aspect. I don’t think it’s necessary but attending has really helped my daughter come out of her shell, she has made some little friends and talks about them, it’s really lovely.

I’m also a SAHM and won’t be sending my daughter to nursery or school. I plan to home educate.
You can 100% fulfil social needs for children through playgroups and groups that aren’t nursery.
Even with funded hours it costs money as you pay for the extras regardless.
For me I’d rather her be with me than with strangers. My parents used to run a Day nursery so I have no issue with the concept if it works for your family but I also believe she’s safer with me.

Why don’t you ask him to read the research that says the benefits of being cared for by a single primary caregiver massively outweigh shared stranger care provision for young children. You can't get that time back and he is being selfish, ignorant of the research and controlling from an uniformed position. It is funny that it's work when you pay a random to do it but he dismisses its value when you want to do it. Where parents have to work or feel they need a break from parenting that's one thing, but I'm curious why depriving of you and your little one of this once in a lifetime experience matters so much to him.