I'm not one to mash furries into everything i see or do, however, it is a tremendously prominent habit of humankind to combine things. Follow me here; yes for some it reaches the point of obsession and that is a tad too far for some, but I should iterate that it is not the norm who combine the furry hobby with every other aspect of life to an obsessive extent. Rather most people will tend to combine things out of human nature to a lesser but still present degree. Examples are everywhere and there are a limitless number of non-furry-related examples:
Phones now combine telephone and texting abilities with the ability to listen to music, browse the internet, and use applications that can perform almost any imaginable task.
Combined fabrics, such as my favourite jeans which are 99% jean, 1% spandex.
Cults, which in religious terms applies to any combination of two or more religions simply out of the favouring of certain beliefs from previously established religion and the combining of those preferable beliefs to form a new religious subsection or cult.
There are thousands of other examples than span just as wide a variety of topics. But the similarity and underlying reason behind why humans combine such things as they do, is simply the fact that combination yields benefits. Phones of today permit us to more effectively use our time (or less effectively if one prefers to play games). The mere 1% spandex in my jeans makes them surprisingly comfortable but also stretchy so that i can stretch them over the openings of my skate shoes, ensuring my socks are always hidden as they should be. And finally in the case of religious cults, the combination of different morals and beliefs permits everyone to find something they can believe in should they choose to believe in anything. Essentially, the choice to combine permits freedom and yields benefits, and as such humans have continued to combine more and more things and will continue to do so indefinitely.
So basically what that long winding speech sums up to is humans like to combine things, so what should stop people from combining their hobbies and interests with each other and with other aspects of their lives. Yes some may choose to do so to comparatively extreme levels, but I personally do not see any problem with this. They have the freedom to do as they please with the furry hobby and I do not intend to revoke that freedom no matter how many things they choose to combine the furry hobby with. It's really nothing to make a big, or even small, deal out of.