Agreeing with the general thrust of this thread: make it clear what the budget is, then pick your battles.
Take a hard look at the severity of the LD, and how it, and your son’s ability to handle it, have evolved over the last few years. Recognize that the son sitting at your dinner table tonight is in or near a major developmental spurt, and will be maturing a lot over the next little while- and university will help some of that along. It is fair for you to ask him how he plans to deal with his LD when he is away - & what services are available to him at his preferred schools, but not to categorically limit the size or type of college or uni.
Go ahead and make a parent’s pick (or 2) rule - but don’t waste it on something he has made it clear that he hates, b/c he still has to write the ‘why us’ essays!
And then see what the choices are in the spring. As somebody upthread pointed out, there is a big jump between applying and enrolling!