A point if you will; reading peoples opinions/beliefs doesn't entail you to believe their viewpoint. It's your choice to read and take offense, to give it credit and engage. If you take offense at every belief/opinion that opposes yours, you'll never be at peace cos there'll always be another opinion. And of course this is only my opinion, take or leave it; I don't really care ;)
As for Plato, some interesting classical philosophy but much has been learned since then