It’s not clear what you are trying to say without context. These arguments don’t provide reason enough to take part. (‘Reason enough’ is fairly highbrow) These arguments aren’t a good enough reason to take part. It’s not clear what ‘being their vote an obvious yes’ is supposed to mean. These arguments don’t make a ‘yes’ vote obvious. (You might still vote ‘yes’ but need to think about it) These arguments are insufficient to warrant a ‘yes’ vote. (You’ll vote ‘no’) You have to