It's almost certain that one brand charging station are going to be forbidden soon in Europe, as it is going to create a huge mess. Try to imagine if the gas station were only able to serve one brand...

Yes Tesla should open its chargers to everyone before they are forced to do so. I know some Tesla owners like the exclusivity but I think it will benefit the brand more to open the chargers.

I don't see how. "yes, we can now subsidise our competitors?"

I mean, they can still charge the owners of non-Tesla cars. They should be operating the charging stations to sell charging, not to have an anti-competitive edge on the market.

If the experience at a Tesla charger is great, price is good, speed it good, you may be more interested into buying a Tesla.

If Tesla chargers continue to be only exclusive to one brand and take so much space in the parking lots on the motorway, not as much.

Ionity has a different pricing model for cars made by brands member of Ionity and other brands.