Yeah, a tankless pulls down power like an EV, and since conversion to heat is 100% efficient (loss in the pipes on the way to your shower notwithstanding) you actually need that power to heat up the water at the speed a tankless sends it through. That's why the gas ones work better, hydrocarbons store a shitload of energy.
I've talked to many plumbers about this and what I've learned is that if you don't have gas, it won't be as good (on average). New construction with dedicated power is a different story, but retrofits are often limited to whatever the old water heater was using, which by definition isn't enough. Running new power is likely to be a headache.
I grew up with shooting sports so it's normal for me, but I understand the reticence from people who aren't familiar. Guns are terrifying, and if you own one and stop treating it like a death stick at all times, you should consider getting rid of it.
Just because current evolutionary pressures aren't catering to your genetic predispositions doesn't mean you're not human. Consider how successful you'd be if the pandemic and social distancing had never stopped.