If you mean exist, no. They are fictional beings in many different stories. If you mean insist, then some "certain" vampires very much insist on ruining the rest vampires for the rest of us.
It depends on the lore or mythology being followed. In some stories, vampires are harmed or destroyed by sunlight, while in others, they may just be weaker or lose their powers during the day.
insist
Insist what? New Atheists insist everything other Atheists insist. The Denial of the claim there is a God by Theistic religions.
are vampires true are vampires true
An antonym of "insist" is abandon.
The preposition for "insist" is generally "on". For example, one might insist on a particular course of action or insist on having something done a certain way.
yes vampires are real, bats are vampires. but human vampires are not real
Some collective nouns for vampires are a vein of vampires or a clot of vampires.
Insisted is the past participle of insist.
Insisted is the past tense of insist.
The noun form of insist is insistence.
The corresponding adverb for "insist" is "insistently."