If everybody is referring to the average household having one or two EVs plugging them in at night to charge then yeah, no problem.
If you want commercial vehicles to be EV as well then no, the grid is not fine. I'm a mechanic for a fire department and another local department wanted to prewire the new stations they're building for EV chargers. There's three companies building EV fire trucks now so it's coming, might as well build in the capacity. They said the color drained from the engineer's face when they gave him the specs for what the charger requires. They don't have enough power supply to the station to run one charger and they need probably three or four. These are commercial buildings, not a house with a 200 amp supply.
I can't speak to the rest of the country but around here they're closing power plants and dams not building new ones... To make no improvements to the grid and then to say that all new vehicles need to be electric by 2035 or whatever is idiocy. That's not just going to magically be fine, someone's going to need to build power plants and distribution.