It sounds harsh and cliché, but you have to learn to play Hunter to beat the monster. If you just chase it without cutting it and you generally just wander around aimlessly, your hunter team won’t make it. Also the hunterteam follow the rule about the chain is only so strong as the weakest link. If you have one slacker in your team, he can very well be responsible for your demise, maybe you were this slacker by yourself sometimes.
Good thing if you get better with hunter you also get matched with better hunters, if you play random match. If everyone knows ‘How 2 Team’ and their role, knows how to save up jetpack, how to avoid damage alltogether, do damage efficiently and most importantly how to corner and trap the monster. This is something which comes over time and takes a lil bit. Teamplay requires trust, that they do the right thing in the right moment, you just can’t expect this kind of synergy from complete strangers or newbies to the game.
The monster is one player, it doesn’t depend on teamwork and has superior power by design. You can also allow yourself more mistakes as monster, for instance when you only work with your armor and manage to escape.
Even Maniacsquirell (a dev streamer) said on his stream that this is a case of ‘l2p’ as harsh as it sounds, but that doesn’t mean that they will oil the wheels until release and make everyone happy, the pros and the casuals. This split can prove difficult nowadays, as both groups have different expectations from the game.