Most cycling clothes look horrible. Most cyclists have horrible taste. Mocking people who have horrible taste is acceptable and even, to a point, laudable.
An increasing number of "technical" clothing brands are making attractive clothes that are well-suited to biking. You simply need pants and shorts that have some stretch, so that your seams won't burst before their time, and shirts and jackets that breathe. Do some web searches for blogs that cover such garment makers.
Also, you won't look stupid on a small-wheeled bicycle unless you're fat. If you're fat, lose weight.