Censorship and oppression of free speech is a problem in many countries.
You must take precautions to be safe.
Don't browse or post about nazi or antisemitic topics on public networks and machines you don't own.
Use a VPN. Yearly subscriptions to good ones are relatively inexpensive, especially now when there are alot of sales and discounta floating around. Alt right media channels tend to have discount codes for reknowned VPNs.
Don't use your personal or work emails and usernames. Never use your real name, address or number. Create an email specifically for JOS or whatever service you use that (((they))) don't want you to. Do not use names and passwords that you used on personal accounts.
In this age data security is only going to become more important and the only way to be secure is to not leave breadcrumbs, not have ways for anything to be tied to you. Prevention is the best cure.