Am I overthinking?

Just left my husbands families house and I am humiliated. First of all, I brought over a few side dishes for Christmas dinner, my husband and I went above and beyond on Christmas gifts. I have been in this family for 10 years. My husband is 38 years old and I am turning 30 in a few days. His family continues to treat me like shit and he lets it happen right in front of them. It’s little sly comments like, are you stupid? This goes over here or this goes over there, or you’re not going fast enough. Just comments that make me feel like they don’t like me or they are irritated by my presence. I told my husband about it on the way home and at first he agreed with me then I went more in depth, & he got super defensive. We’ve had little dramas here and there with his family, but I feel like my husband should have my back fully no matter what, am I wrong? I feel like he’s manipulating me and gaslighting me into thinking that it’s all my fault for being slow or saying things wrong and then over correcting me or being rude is justified. When I know that’s not the case! I’m not stupid, I have a very good social life. I feel like they have something against me and it’s really fucking bothering me. I straight up feel like I’m being manipulated into feeling like I’m stupid. It’s like everything I say or do, they look at me like I’m dumb! Please tell me I’m not crazy, if I am, let me know!