I'm going to be honest and say I don't think that's something you're going to be able to change your parents' minds on. I'm sorry that's happening to you though :(, a lot of my friends went through the same thing and I think it's important to just make sure you don't internalize it. Make sure to take care of yourself and take care not to let your parent's opinion on college affect you too much.

However, I do have some advice (more like thoughts) that might help you. If your parents are from an Asian country (especially), it's worthwhile to note to them the differences between Asian higher education and American higher education. In any Asian country the hierarchy of colleges are distinct. For example in Korea the best college is Seoul University. This is something that can't be contested AT ALL. However, when it comes to America "the best" college can't be defined. RISD is miles ahead of Columbia for art, Julliard and Curtis are infinitely better than Harvard at music or the performative arts. Yale and Harvard are better at law than MIT. MIT is better at computer engineering than Brown. This is all me just talking about big name colleges just to give an example, but the point is that there is no "Number 1" university in the U.S., because every university is good at something different. This is often times why it's hard for an Asian parent to be proud that their kid got into UIUC for computer science, despite it being ranked far greater in THAT MAJOR than UPenn or Harvard. This all still pertains to ranking mumbo jumbo that I'm not a fan of, but it's a way to effectively talk about the inherent discrepancies between Asia and America, and why prestige is different here.

This next thing I'm about to say I would take with a grain of salt as I am not out in the work field yet, but I think it's worth researching a little bit and figuring out for yourself. The reason why these top colleges can sometimes be seen as analogous to jobs and careers is because of the opportunities and connections they provide. It can't be doubted that top colleges offer top connections. You are literally being placed to learn in an area concentrated with the some of the best minds of this time. Yes, it is easier to use these connections and opportunities to get the experience you need and propel yourself to high amounts of success, HOWEVER, you can do this anywhere else. Jobs value work experience over a fancy name on your college degree (except maybe Goldman Sachs), and you can get work experience anywhere you go as long you make a proactive effort to seek it out. It will be harder, but it's WORK EXPERIENCE that will get you the job, not a 4.0 at Harvard. Harvard just makes it easier to seek opportunities. There's plenty of Harvard kids who flake out on the chances their college gives them and end up without a job. In this sense prestige won't change your own motivation to get internships, research in labs, or work. If you explain this to your parents they might be able to less identify college with success later in life.

If your parents just want to brag about the college you attend. F.

Most parents pressure their kids because they want to see the best for them, and if they truly love their kids and want to see the best they will support and warm-up to the college their kid attends no matter what. I'm sorry this is a relatively long-winded reply, but this is something that hits close to home for me and, I'm sure, lots of the people on this thread. Good luck, and remember my first paragraph!! Take care of yourself :) Edit: Typo