Goodness, how is that being tolerated? I guess it can’t be stopped without a lot of political capital; but 16k lines of code is HUGE, and I cannot imagine that it’s actually 16k lines of value - I’ve written whole new subsystems of a product in fewer lines. Are these all written in an exceptionally verbose language like Go or Java? Are they VERY well documented? Are they doing things they shouldn’t be doing???
I mean, I've done that for a couple of things, but probably 90+ percent was vendored libraries and javascript which could be ignored. Sadly, this is not one of those cases, and Im guessing yours isn't either?