Actually only Bitcoin whitepaper not allowed be served to UK visitor, although it's it's outdated news. Some news report that some time after COPA win against faketoshi on court, Bitcoin.org restore whitepaper access to UK visitor.
I've never used the Mac version, but I don't think there should be anything called "coinminer" in there. Try to download from
https://bitcoincore.org/en/download (the link shown under News above this page).
Good point. But i wonder whether some antivirus still flag Bitcoin Core as malware or something like that. I remember Wasabi Wallet launched campaign to stop such false positive many years ago.