I don't. I have no problem if the model of my ride comes also as a taxi cab.
I've been to Germany and Austria. They have cabs that are either Mercs or Bimmers. It's no no big deal for the Deutchelanders. In Japan, Toyota Crowns are cabs. In Japan, Pajeros are being used as field implements. I also saw a few CRVs that function as utes for NTT contractors. I even saw an HRV being used as a newspaper delivery van. The Japanese don't care either. If any of you would go to Cambodia, you might be surprised that, while there are only a "few" cabs there compared to Manila, some of their cabs are 4-5 year old Camrys. If you go to London, they have cabs that would already be luxury cars here.
It's just Pinoys are...finickey with their cars. For most Pinoy males, their car is an...extension of their manhood, machismo, and whatever one might call it. Let me tell you a true story:
There's this kid I used to work with sometime in the '90s. He bought himself a Nissan Sentra SuperSaloon. One day, he came in pissed. I asked him what's wrong with him. He said that he wanted to sell his car. I asked him why would he do that. His car was only six months old. His reason: he saw a man driving the same car model, but his problem was that it was a cab. So I asked him, "what's wrong with that?". His answer was something like this: "Boss, ayaw ko na. Nagmumukha akong cheap, yung car ko pala eh ginagawang taxi. Nakaka-degrade".