To make it illegal for people to 'out' someone for their sexual and/or gender identity without the persons' consent. Anyone who does this can be charged with committing a hate crime.
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For the LGBTQ+ community, being 'outed' for their identity without their consent and before they are ready is deeply upsetting and is a huge invasion of their trust and privacy. In some places across the globe, this is also very dangerous. 'Outing' someone is a horrible thing to do and should be made illegal.