Amateur radio (I refuse to call it ham radio) is one of those hobbies that has as many cliques in it as any other hobby you could possibly imagine. The only common thread that I would say that all hams share is that they all have at least some desire to reach out and communicate with people that they have never met before, and do it in what the general populace would consider to be unconventional means.
You could have a room full of amateurs who have never even communicated via radio for the simple reason that their own specific operating preferences make it sure that they will not hear each other on the bands. You have those who only want to run code on 160 meters, using QRP (low power) rigs, at one extreme of the spectrum, and others whose only interest is in running experimental digital modes on microwave point to point links running at 47 GHz, or higher. And you have those who like to run moonbounce (EME), where if the signal isn't bounced off the moon they don't want to hear it, and the HF contesters who are after contest points to the virtual exclusion of all else, the DX chasers who would be trying for the WEEBEM award if there was one, (Worked Everybody, Every Band, Every Mode) the repeaters only crowd, the RTTY crowd, the experimental digital communications crowd,
and you name it, there are plenty of others. The trick is to ensure that (hopefully) every amateur should speak positively about the other aspects of the hobby even if he is not personally interested in them. My particular bias is that I prefer to use public safety grade FM and digital radios for VHF and
UHF operations, and yes, I do enjoy some HF Dx'ing as well but don't do it very often. I am very interested in public safety communications (which is closely related to my radio choices) and I am a full time radio technician. As such I suspect that I am a bit more involved in the electronic/technical side of the hobby than most amateurs. When their radios break, I fix them. These are the parts of amateur radio that I derive the most enjoyment from.