/lit/ - Literature

So I read one of my sections at a large crit group and I must say I am utterly demoralized from the process. I feel like in person crit groups may be a waste of time. I read a 2000 word section, which is like a 3rd of a chapter and all they (10-12 people) had to say was there was too much exposition, they did not know what the point of anything was, a bunch of conflicting notes, one person liked a section of action description and another did not understand the exact same section.

It is a mil sci fi so I get that it is not everyone's tea, but I find it impossible to really edit the work based on feedback from people only getting a look at like 2% of the work. Do people really expect you to explain the entire plot every 1000 words, to explain what is going on in the MC's head at literally every moment? To not have any world building or concepts at all beyond a single sentence? Should I take story advice for an adult, hard mil sci fi story from people who write childrens books and soft fantasy?

I like getting out he house and talking about my work but I feel like if I follow advice from these people it will ruin the book.