Signs, Signs, Everywhere a Sign

Let's talk yard signs, Hate has no Home Here, Love is Love, All are Welcome, etc.   What do they mean, what is underneath the surface?  How do they prevent us from using Logic and Reason to arrive at Truth.   Compare the sign that says: We Believe: Black Lives Matter No Human is Illegal Love is Love Women's rights are Human Rights Science is Real To this sign: We Believe Life is Sacred Biology is Real Sex is not Love Our rights come from God not government Truth is Not Relative