Are you serious? Too long? Have you heard of scrolling?
All I'm asking is that we get the same ease of picking tags on PC that we have on Android. On android you tap the tag icon, and the scrollable list of all your tags comes up and lets you check one or several of them. This is much easier than having to press ctrl+alt+T, and easier than having to remember all your tags in order to type the first letter(s) of each.