I'm not going to ley you count all the ZOEs either as it's only the most recent that have CCS.About 42k. But they are still EVs. So to say the majority of EVs are Teslas is clearly wrong. If we are looking at EVs that could use Super chargers:
Tesla : 70k
Audi: e-Tron: 12500, Q4 e-Tron, 1,500, RS e-Tron GT: 150 = 14,000
BMW: i3: 22000, ix3: 900 = 22,000
Renault: Zoe 20000 = 20,000
Skoda: Enyaq: 1700 = 1,700
VW: ID3: 13000, ID4 3000, eGolf 7500, eUp 1000 = 24,500
There may be others but the list is not searchable by EVs so I'm having to manually select manufacturer and model. What this shows is that by opening up to non-Teslas there are now over twice as many cars that could be competing for the same number of superchargers
As a side note there appear to be 27,000 Renault Twizys registered in the UK. Who'd have thought that!
Edit to add more number in case people are interested
Polestar: 2: 3200
Hyundai: Ioniq 5: 2000
Numbers are 2021 Q3 so out of date a bit but I'd expect that the overall trend is similar?
Without them in the mix your numbers come to 67.4K, so less than Tesla.
Clearly there are others, Ford MachE, e208, Mini, Honda etc so technically you are right in terms of numbers, but in terms of the question that was being answered it's simply not the case that there are more non-Tesla's that are likely to want to use SuperChargers, and we are simply not going to be swamped by other makes of car.