A LOT of bike club memberships are filled with [censored] and [censored]. If you can, find out when their monthly meeting schedule is and drop by, in person, to see them in action and meet a few club members.
There are a couple of local clubs that just astound me with their level of unwelcoming cliquish/clannish behavior, elitism (despite being slow old retired farts), hostility towards youth cycling and generally boorish intellect...this coming from an avowed NASCAR fan (today's topic: Did Jimmy Johnson single handedly kill NASCAR attendance?). Avoid this type of club at all costs.
There are also a few area clubs that are comprised of mainly friendly sorts.
It may take years to find a good mix to fit into. It may never be, in some areas of the country. And even if you do score your way into a great club, not every ride is going to be a club ride or in the company of other members. You'll still be doing at least 'some' solo work on the local roads.
Cyclists, for all their proclamations of 'inclusiveness' can be some of the most exclusive personality types on the planet IMO.
Reading that you're only in your second year of cycling, but have already discovered where peace and quiet can be found, give it some time. Do get the rack mounted on your car and get away from the NASTYCAR fans (they're probably Junior fans, to boot! I keed! I keed!). Ignore the comments about your legs and if you are a shaved racer sort you might want to get that USAC/USCF license and start training with the fast set. Local teams, race team training and racing, itself, generally mean more seat time in your car. Not always, but usually in my experience.
Oh...and if you are from the American South...get your Concealed Carry Permit and be prepared to pull it. With a Rebel Yell, of course.