Yes, but by "inside the perimeter", you mean up-close to the basket. Zion is a great example. Take a look at his shot chart [0]. He doesn't even think about shooting more than a few feet away from the rim.
As I said, at this point, basketball has coalesced around offenses entirely focusing on shots at the rim, or beyond the 3-point line. Anything between there is a wasteland where teams don't even bother shooting anymore, despite Hall of Fame players like Michael Jordan and Karl Malone making those areas of the court a huge part of their game in the 90s. And this doesn't seem like much of a fad. Its a trend that has been becoming increasingly entrenched for nearly 2 decades at this point. The charts on this 538 article are all you need to see why this isn't simply a matter of what's fashionable, and is a simple mathematical reality under the current rules [1].
But I definitely agree with your last point. Basketball has numerous issues currently, of which unequal shot efficiency is only a part.
[0] https://www.statmuse.com/nba/ask/zion-williamson-shot-chart
[1] https://fivethirtyeight.com/features/how-mapping-shots-in-th...
The strategic trends always go in and out of fashion.
One thing that I see in Basketball that needs fixing though, is that the rules make the defender's job incredibly hard. Especially with the rules around fouls. They need to look into fixing that. I think a solution to that class of issues, will inadvertently fix the 3 pointer issues you cite too.