Some of the captchas give you an option where it reads off some numbers, and you enter them. But I've found them to be pretty crap some days as well.

If a blind person were doing it, the CAPTCHA would almost certainly have been automatically bypassed. Your outrage on behalf of us was not required.

i've already been told by at least one person that they tried that, and discord don't appear to be all that helpful regarding it. i've come to the conclusion i just won't be able to use discord again till they sort it out

it's actually stated in their own page about accessibility on hcaptcha.com. i'll quote it here to save you time.
Q: Are you working on other accessibility ("a11y") options, like audio? 
A: Previously popular options like audio captchas discriminate against many a11y users and are easily defeated by modern machine learning techniques. This has forced current audio challenges to become more and more difficult, introducing noise, odd timing, unusual word combinations, and so on to defeat attackers. We are thus less enthusiastic about this approach vs. avoiding the challenge altogether, but will consider it if there is demand from the a11y community.

However, we are very interested in Privacy Pass for the Accessibility use case. We believe combining our current a11y approach with Privacy Pass issuance will allow a11y users to browse safely, secure in the knowledge that their traffic is more private, while restricting the abuse by bot operators that inevitably occurs when a11y options are available. We are active participants in the IETF working group standardizing this new technology.