Discrimination against vegans is a real thing, there are instances where individuals were treated worse, denied housing and work opportunities all for simply having different beliefs. You should consider reading these articles on the topic:

Does Veganphobia Exist?

• Many people may assume veganism is an easy choice, driven by fashion and fads.
• Veganism often has a foundation deeply rooted in personal ethics and beliefs.
• Vegans are often severely stigmatized and may find themselves rejected by mainstream society.
• Our spiritual and ethical beliefs can be just as powerful as organized religion.

Vegans Suffer From Stigma

There are many circumstances in which vegans are treated or considered worse than nonvegans, both in the private and the public sphere, either due to the presence of a bias against them (‘vegaphobia’) or for structural reasons. For instance, vegans sometimes suffer harassment, have issues at their workplace, or find little vegan food available. In many cases they are forced to contribute to, or to participate in, animal exploitation against their will when states render it illegitimate to oppose or refuse to support some uses of animals. For the most part this remains socially invisible. Vegans, however, often recognize this as a form of discrimination against them. But they seldom campaign against it, as they regard it as a consequence of another and more important discrimination, i.e. speciesist discrimination against nonhuman animals. If this is correct, discrimination against vegans can be characterized as a form of second-order discrimination, that is, discrimination against those who oppose another (first-order) form of discrimination. If speciesism really is unjustified and discriminatory, then discrimination against vegans will always be discriminatory and unjustified too. But even if our current attitudes towards animals were justified there would be strong reasons to claim that vegans do suffer several forms of private and public discrimination that are unjustified.

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