Our society is not without faults. Our domestic and foreign policies are also often flawed. To correct failings, we need people who point them out, however unpopular that may be. We should be enabling a wide framework of public discourse, not seeking to silence people. To date, we haven’t quite reached the level of hysteria of 1950s McCarthyism, but we are perhaps coming close.
Russian ties, if present, are indeed dangerous. Laying unsupported claims to “russian connection” is just as bad as any other libel or damaging unsupported claim. Should we spend time eradicating russian influence - absolutely. How do we do it without turning it into a witch hunt? I don’t know how.