You can do something with it if you are hard working and dilligent with it
I have 2 friends who got their Equine Management Degree's from Michigan State University - and one runs and manages her own barn, and the other is running a barn for a 3* Eventer in Kentucky, making great money and having a blast.
My Parents are the same though, my Dad never supported my Horsey Passion at all. He was born and raised on a very large Cattle Farm, that his Father was born on and his Father and so on and so on. He was raised to work from Dawn to Dusk and if you are not bringing money and food to the table, you are worthless - so that's what I grew up with. He felt horses were a waste of time, and felt that if I got hurt on a horse, I wont beable to work.
So I did it all on my own, and I am very thankful for that - because I grew up understanding the importancies of hard work and earing what I wanted, on my own. I too, "hated" my Parents for not supporting my horse passions, and grew up surrounded by Peers who's parents bought them everything, from expensive TB's, to expensive tack and paying for all their shows and comps, hauling them everywhere and always being there for them - I greatly envied them, very much so.
But now, I look back and I realize my Parents gave me great gifts by not supporting my Horse Hobby - because I greatly appreciate all that I have achieved and all that I worked for, on my own
So view it as a blessing, a stepping stone, a life lesson that your parents are giving you. You'll be all the better for it!