What is the right thing to do?

I’m kinda stuck on dealing with my hubby’s branch of the family. They live a couple hours drive from us, see them for a whole day once a month or two. I am personally not close to them. My MIL used to make an effort with me, but since I’ve had children, they’ve been quite toxic, ignoring me at times and say the odd unkind comments. If they had been anyone else, I’d have walked long ago. They continue to spend money on the kids at Christmas / birthdays etc and call my hubby once a fortnight asking after the kids etc (never about me of course, I’ve fulfilled my “job”). I’m just not sure how to continue with them, considering their behaviour towards me has been awful. Hubby is a bit spineless when it comes to communicating with them, he enables it by not saying anything. Anyway, it’s built up, caused a lot of anxiety and I need a resolution, preferably one that has the kids best interests at heart. What would you lovely ladies suggest I do?

Edit responses-

Option 1. Talk to them - YES, I wish! Unfortunately, not an option if hubby can’t support me or stand up for me or have any of the skills to communicate well with them. It would need to come from him and he’s chickened out every time. He doesn’t want to loose them over this as they estranged one set of his grandparents over something similar towards my MIL when he was a boy…

Option 2: hubby takes kids to them without me… It’s a 3 hr drive with a breastfed 6 month old and 2 year old, so unfortunately not an option. Also - pretty sure that’s what they are wanting - me out the way.