If your security requirements are such that you need to worry about legally-issued search warrants, you should not connect your computer to the internet. Especially if it's running Windows.
In all political environments everyone should be worried about that. The social temperature can change rapidly and you generally can't force a third party to destroy copies of your things in a reliable manner.
Right, this is just a variation on "If you have nothing to hide..."
ETA: You're not wrong; folk who have specific, legitimate opsec concerns shouldn't be using certain tools. I just initially read your post a certain way. Apologies if it feels like I put words in your mouth.