Is it me or has Family Guy become less funny than it was in the past?

I used to love Family Guy but the newer episode which had so much potential have, in my opinion, become less funny with each episodes. The comedy seems to become lazy. Seth has also become more preachy about his views on the show. The episode with Rush Limbaugh in it ( I was surprised to see that Rush actually did the voice acting on the show) should have been great. Instead it was boring. I found the “Not All Dogs Go To Heaven” episode to be very condescending and in order for it to be comedy it has to make you laugh. The end of that episode didn’t make me laugh because it wasn’t even meant to be funny. The show has become very biased. Even Seth said that he concedes that show has a liberal bias. That is ok, I can live with that. Brian has become increasingly annoying in the recent episodes. Shows like Family Guy are not supposed to have a message. They are only meant for one thing and that is to make people laugh. The writing seems lazy. The comedy is weak and lazy. They seem to reuse the same thing over and over again. Everything they need to make a great episode is there but they seem to always fall short. The show always used shock comedy which is great but gets old when overused. The show is getting increasingly mean hearted. What happened to the creativity of older Family Guy episodes which made fun of everything equaly and not just the things that the writers disagree with. I know it is just a cartoon but it is an adult cartoon ( face it, a veiwer born 22 years old or younger usually don’t get the pop culture references that they make fun of, which I love btw). When I tune into Family Guy. I want to laugh and not get a preachy episode where Seth and his writers shove their atheist or political views down my throat. I also think they are ruining the charactors on the show. Making Brian annoying and pretentious. Making Stewie less evil and make Lois a bitch. Taking Cleveland out to make a spinoff was also a bad idea. Cleveland was a great charactor on family guy. Getting rid of the evil monkey was a bad idea. The show still has potential but I think the writers are getting very lazy and tend to recycle alot of the jokes too quickly. some of the new jokes are lame. What has happened to this show. Has the popularity gone to their heads?