I usually have much more empathy for those in the community who lived through the AIDS epidemic, but you seemed to have picked up more of your worldview from cosmopolitan than from your own community, shown by your complete lack of understanding of biphobia and its motivations.
In early queer movements, political lesbianism was often a part of many radical feminists' lifestyles, and bisexual women were viewed by some as traitors to lesbianism, siding with the patriarchy when they were attracted to women as well. They were often rejected from queer communities because they couldn't "commit" to either side. Bisexual was a dirty word, and bi women had to fight to be included in lesbian spaces. From outside the community, they still face the same discrimination as homosexual women, with added stereotypes of hyper sexuality and sluttiness. Bisexual women are often treated primarily as objects for straight men's fantasies about lesbian women.
Bi women also are much more likely to experience domestic violence than straight women or lesbians.
https://journals.lib.sfu.ca/index.php/thirdspace/article/view/pell/3121https://www.tandfonline.com/doi/epdf/10.1080/17405904.2014.974634?needAccess=truehttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC10486155/From outside the community, bisexual men are targeted by the myth that they are a vector of diseases, and a danger to straight women. During the AIDS epidemic, it was widely circulated that rather than the much more common methods of IV drug use, and sex with IV drug users, bisexual men were the sole vector for a gay men's disease to infect straight women. Magazines like cosmopolitan ran articles fearmongering and encouraging women to find out if their husbands were secret bisexuals. Beyond the employment, housing, and social discrimination against homosexual and bisexual men, these stereotypes pushed many bisexual men to further repress themselves.
You describe it as a convenience to be able to have a "beard" rather than a terrible thing to have to hide and repress. In all, this furthered bisexual men's reputation as liars and threats. This view of the bisexual identity itself as a threat to one's health or relationship, rather than the acts of betrayal and unfaithfulness that would actually cause harm to a partner, assumes bisexuality and infidelity are synonymous.
This association between infidelity and bisexuality that you hold was popularized not only by trashy magazines, but church figures, because bisexuality implies a person could have sex with more than one person in their lives. These discriminatory and unfounded beliefs are repeated by many homosexuals within the gay community as well.
You really should mind your company, they make you look quite bad.https://bi.org/en/articles/how-the-aids-pandemic-fed-biphobia(sorry for the tumblr link, the only online copy I could find to back this up)
https://fujiwaradivebar.tumblr.com/post/648469012439842816/fujiwaradivebar-verily*****ie-can-someone-inBoth clearly face doubt and discrimination within the community beyond the discrimination they face for their queerness, even if you want to take the ridiculous stance that they can't be oppressed because no one has invented a special slur to shout at them on the street.
Basing your entire perception of a group based on the bad actions of a few, particularly the actions you have personally seen in an environment where bad decisions are concentrated (such as grindr, known for its anonymous hookup culture), is by definition bigotry. It isn't subtle, it isn't righteous, and it's very disappointing that you're just as untrustworthy and incompetent as many of your straight peers.
This thread is meant to be a place for LGBTQ+ people to ask advice and questions about their sexuality, so I've tried to make my post as historical and informational as possible. Before you reply with another biphobic assertion of a hypothetical incident of infidelity, I hope you'll consider the impact of your words on the many (often young) bisexuals who might read them.