Don’t think this opinion is unpopular at all. It makes sense for platforms that are similar to interop.
Hypothetically like Youtube interop with Peertube (video platforms) or Instagram interop with Pixelfed (photos). Or Threads, Reddit and Lemmy (forums). And Mastodon and Twitter (sorry, but just making a point here 😁)
But yeah, see no reason for interop between platforms with completely different purposes.