No - on so many levels.
Actors come in all shapes and sizes. Looks play a part in casting in that directors have a “vision” for the project and may want to cast people who look “right” with each other and have “chemistry”. But most directors don’t envision a show where everyone looks the same. And doesn’t matter how good you look, if you can’t act you won’t get cast. Looks are not as important as talent, training, experience, industry connections and professionalism.
And you don’t “break into” Hollywood. It’s show business, not a bank vault. Attempting a professional acting career basically involves starting and running a business where you are the product being marketed and sold. It involves contracts, unions, marketing and networking. It requires a good business sense including an understanding of your skills and how they fit into the industry.