Can't get him to eat anything. I need advice!!

Okay so my 18 month old will not eat anything that is not crunchy.

Like nothing..

He has been this way ever since we started introducing solid food.

I legit buy freeze dried fruit and veggies for him so he will eat more than dry cereal and crackers.

He ate baby food from age 5 months until close to a year. We started to introduce other foods such as the toddler Puffs and and the little teething biscuits, spaghetti cut really tiny, rice, goldfish, and pretty much anything we eat just cut up really tiny.

When I make dinner I always make him a plate just like everybody else (his dad, me, and three older sisters) he refuses. Puts his hands over his mouth. Slaps the spoon of you try to feed it to him. Throws it on the floor. And just sits there and screams until you take him out of his seat.

I have tried to not give in and thought 'if he gets hungry enough he will eat it'

WRONG

This just ends in him throwing horrible tantrums and he still won't eat the food I made. He drinks mostly milk. As soon as you give him his cup he chugs it and throws cup down angry when it's gone. Sometimes he even throws up from chugging so fast.

He doesn't really talk or communicate yet and I feel like he isn't getting the nutrition he needs.

I have gotten him the toddler next step formula and he loves it but idk if it's making a difference and it's expensive 😬

Any advice is welcome. We are getting desperate 😭