I disagree. Once you've been taught a base ten counting system, units that change based on orders of magnitude is very easy to understand. Since almost everyone has a base ten counting system internalized, metric is MUCH easier.
Don't get me wrong, I like the metric system. But US Customary units aren't that hard to deal with. Seriously, we're software developers, we don't memorize shit. We create type definitions and routines to convert between them.
The same arguments you make for why it's not that big of a deal to switch are the same arguments for why it's not that big of a deal to not switch.
That's not true at all. The metric system is more intuitive because it is a Base 10 system, which is very intuitive and natural for humans because we have ten fingers. Base 10 also makes things a lot easier because calculations are simply a matter of adding/removing zeroes/decimals.
And base 12 is way more divisible.
Metric only wins in my book because it is much easier to convert units (there are no magic numbers for conversion factors). However I'd laugh at anyone who suggest metric is better because people inherently internalise it better, just as I laugh at people who suggest the same for imperial.
The US should switch, there are no legitimate arguments against it except perhaps [short term] costs. Certainly not "because F is easier to understand." It is only easier because you grew up with it and are used to it...