What matters is the _ratio_ of UX to benefit.

For example, if the user will benefit immensely from your product (e.g. they will automatically get $1 million once they find their way to a certain part of your website and click a button), then they will be willing do deal with a pretty horrible UX.

Meanwhile, if they're only going to be saving $1 by choosing your product over a competitor's product, then they're not going to put any effort into dealing with an imperfect UX.

Test out your MVP with a couple people (family, friends, and if possible some strangers) before "launching" it to everyone in the world. That will give you a sense of how acceptable the ratio is for your site. The strangers will be least willing to deal with a bad UX, and your family/friends will be the most willing to deal with a bad UX.