Temper tantrums while husband is working from home

I need some advice on how to handle this.

I have a 2 year old and a one year old. I got laid off right before covid and I was looking for a job, but any offers I got were not willing to pay what I was making at my previous employer, and it would have barely covered the daycare expense for 2 kids. So my husband and I decided I would stay home until my oldest started preschool/ kindergarten. I was so happy, I wanted to be a SAHM so bad and I finally had the opportunity.

Then covid hit, and my husband has been working from home since March, and has absolutely no idea when he will be going back in the office.

It started off good, my son was 18 months and my daughter was 4 months at the time.

Now my son is two and he is a nightmare. He wants to climb all day, climb the table, climb his high chair, climb his sisters high chair, he wants to play in the bathroom, he likes to open the dishwasher and play with dirty dishes, ipen the fridge and take everything out, I am constantly saying no and redirecting, and he is flipping out, screaming. I want to ignore the tantrums, but the problem is our house is SO SMALL, that my husband can’t deal with the tantrums. Once my son starts, my husband comes down and starts screaming at all of us that he can’t work like this. Of course when my husband starts screaming, my son starts screaming even louder, then my daughter starts crying. A bad situation gets 100 times worse in seconds. So the result- I end up letting my son do whatever he wants. Which I know is terrible, but I don’t know what else to do. I need to keep the kids quiet so my husband can work, but all I am doing is giving in to temper tantrums and now my son is a monster.

This is NOT how I planned to parent and I am messing up so bad.

The only solution I can think of is that my kids need to go to daycare. It makes me sad because I finally had the chance to stay home with them but it’s just too loud for my husband. Is there other way I can make this work??