Perhaps, but people have been saying exactly this about Tesla for the last ten years now. Hasn’t been an issue for them yet, despite much improvement in the EV offerings from other manufacturers.
Cadillac ELR, BMW i3, Chevy Volt, Chevy Bolt were all billed and hyped as "Tesla Killers" upon launch.
https://insideevs.com/monthly-plug-in-sales-scorecard/
To date, no other manufacture has announced any plans to procure enough battery supply to produce cars in comparable volume to Tesla.
The comparison of Tesla to other EV options just isn't fair. Tesla models were designed from the ground up as being electric from the start, but other options have been ICE cars transitioned to EV, which makes them less-than-ideal and they lack the low center of gravity and storage capacity a tesla has.
I really do struggle to see how other manufacturers will compete with Tesla. Tesla just does so many things right...