I don't know enough on that to have an opinion, but either way, Russia has viable ships, men and weaponry to cause problems for any European nation. They are sending subs and ships into territorial waters and looking to expand in the Arctic, as the US and China are. The melting ice is opening up permanent year round shipping channels and so a new frontier.
My point was more that the state of the UK navy, isn't an entire mistake or terrible idea. It's in an in-between stage of the old-style war frigates and the new fully tech modern ones entering service over the next 15 years. The old ones are being flogged off to the likes of Brazil and Turkey. Right now, it's convenient for the media to blame Starmer/Labour for not having enough frigates to 'scare off' an oil tanker, but this decision was really made in the late 1990s/early 2000s and through up until 2015, when the new style frigates were commissioned during this period.