What is the ruling on one who falsely claims homosexuality to obtain asylum, and is this considered apostasy from Islam or one of the grave sins?

A Muslim is not permitted to lie in his statements, as lying is a characteristic of hypocrites and leads to depravity and hellfire. A Muslim is also not permitted to claim homosexuality to obtain citizenship or residency in Western countries. This lie involves the sin of lying, imitating transgressors, taking what is not rightfully theirs, and residing in disbelieving countries without genuine necessity, which exposes one's religion and morals to danger. This act is a major sin, but it does not expel the doer from Islam.