Too many requests on whole block of ipv6 proxies

[MaxiFilippov]

• I'm reporting a broken site support issue
• I've verified that I'm running youtube-dl version 2019.11.28
• I've checked that all provided URLs are alive and playable in a browser
• I've checked that all URLs and arguments with special characters are properly quoted or escaped
• I've searched the bugtracker for similar bug reports including closed ones
• I've read bugs section in FAQ

I have about 4 000 request per day to Youtube.com and to avoid 429 I used to ipv4 proxies but it's too expensive so that I bought 100 ipv6 proxies and after 20 minutes of using it all 100 ipv6 proxy were banned with error "429 too many requests". When I use it to connect to youtube via browser it asks for captcha(not image but "click to verify that you are not a robot"). I completed this captcha, copied cookies then I passed cookies in youtube-dl and it worked but only for 10 minutes. How can I avoid ban of my ipv6 proxies by youtube? Maybe there some cookie generators?

[MaxiFilippov]

@remitamine Give me not "duplicate" issue

[MaxiFilippov]

@remitamine