Allah's love to us does not need to be proven after He created us from nothing and granted us life and all bounties of life. Allah (SWT) gave human beings the option and ability to be good or otherwise. Allah does not force us to be good nor to be bad but He helps us if we want to do good and leaves us if we want to do bad. Those who do bad and oppress others will face the result of their deeds while the oppressed will be compensated by Allah for their sufferings.
Wassalam.