I think it would be a good idea to label opinions and beliefs as just that and not pose them as facts. If there is evidence to present that supports those assertions, then by all means don't keep it a secret. Examples are good.
Otherwise, for example:
It is my opinion that the neo-cons are alot more interested in cheap and abundant labor than any liberal.
I believe that they didn't deal with imigration (sic) because big business did not want them to deal with it.
There's nothing wrong with conviction, but stating opinions as fact exposes a fervor that weakens your position and wastes your conviction. It is also a form of intellectual bullyism in that, if not true, the other side needs to prove a negative ... that what you said is not true. It is also dishonest, if it is not factual yet presented as such. That would be a natural outcome of the vehemence of being too right to be wrong, i.e., facts be damned, I'm right and you're wrong.
So your conviction is not good enough. It is in fact old hat and does nothing to convince the other side of your argument, It does however show how convinced
you are with your own argument.
Lastly, PP, in case you think I have targeted you in particular, let me say that my cup simply runneth over at this time. The theme here in L&P is divisive and walks the line of uncivil. It is time to clean it up.