Most men I know personally are respectful and respected, appreciated and appreciative. In my life experience NOW, I do not look around and see despair.
However, I have been in places in my life where your OP is the norm.
MN also (especially AIBU) tends to have more horror stories than romances because good news doesn't require much help to unravel does it? I do find ocassionally that much as I like this forum, I have to step back ocassionally to remind myself that actually it's unfair to believe all men are shits, and all women should be treated as dieties.
In YOUR circumstances, I think you need to have a heart to heart. Chances are he DOES appreciate you, but sometimes life gets in the way of showing it, especially if finances are tight, or your child isn't easy, or just general everyday bollocks leaves you both feeling drained and sorry for youselves.
You're 32. You're not even half way through your life yet. Don't look to outside influences to find your value, look inside, you MUST still have dreams, and even if you can't attain them fully, you can gain a lot from trying, adjusting, pursuing them.