Bingo. If you want to be a dentist, apply to get your DDS/DMD. If you want to be a physician, apply to get your MD/DO.
Bingo. I applied US MD, DO, and carib MD because I want to be a physician. The school I choose to attend is based on a few things like location, cost, environment, and future prospects.
If your goal is IM, FM, Peds, PM&R, pathology, Ob/Gyn, neurology, psych, etc., chances are going to a DO school vs. MD school won't really affect your residency prospects, provided you take the USMLE. If you know for sure you want derm or ophtho, or surgical subspecialties, and you don't want to do an AOA residency, you might want to try harder in undergrad or on your MCAT so you can actually go to a US MD school.
If your GPA is really <3.0, it would take >2 years of post-bac/extra classes before you'd truly have a shot at a US MD school. Alternatively, with AACOMAS grade replacement, you could probably go to a DO school in 1yr. Saving 2 years of your life, getting a shot at your dream to be a physician, and 2 extra years of attending salary seems much better than spending that time taking undergrad classes and paying for them just to have a chance at having MD behind your name instead of DO.