How to make a high quality bike look like a heap of scrap?
= how do I make my bike less stealable?
Lots of sensible advice multiple locks of differing types, locked to solid objects. Insurance and coded by local police etc. In view of the public and CCTV - though this does not always to make much difference. It appears that ebikes are the fashion now to steal, so for you your bike may be less desirable
In my youth I had a summer job in a factory where often 'vans' would turn up selling e.g alcohol or meat at low cost. One time had a lot of Mountain Bikes in the back (just when the craze started) they were all pretty much about £40 from memory, regardless of make or components. Bike thieves are generally not cyclists and tend not to determine which is best etc. ( There are a few who many specialist in stealing highend bikes, though these tend to hit peoples homes etc)
So in short make it as hard to steal with locks location etc.