By this logic every car is a weapon.

Every car is a potential weapon, and many cars and vehicles of all types are, in fact, weapons.

So, it is a bioweapons lab?

Of course, not -- it's just a health lab that happens to produce bioweapons -- two totally different things.

We should ban all cars on streets because it is not safe?

Or alternatively ban all bio research including vaccine development because potentially they can be used as weapons?

Some are. But this is just another case of memetic warfare – weaponizing memes. :)

Have they been weaponised?

Yes. In 2020 a virus was released in Wuhan, and was weaponized by the host country shutting down domestic flights while allowing infected to fly internationally.

Historically this led to a pretty crazy couple of years and we’re still seeing a lot of disruption from it.

It’s not good for the US to be funding bioweapon research within hostile countries or on the border of hostile countries.

Not necessarily. The "weaponized" anthrax from the 2001 anthrax attack was much deadlier than naturally occurring anthrax. The spore coats were silicon coated and combined with charged nanoparticles for maximum disbursal. It may have been an exaggeration, but it was speculated that one light bulb full of weaponized anthrax could potentially wipe out a small city.