Looking at this answer you can see Zina is a major sin as it is compared to the likes of murder. However, I cant understand why.
Murder destroys families, relationships, takes life of innocents, is really expensive and the list just goes on. Some may say the same about Zina but it doesnt cost nearly as much, there are rarely unwanted children and even so it doesnt cost society as much either. Also there are lots of contraceptives and even if there is unwanted pregnancies many can get abortions. This altogether still doesnt have nearly as bad as an impact as murder
Such a large amount of Muslims are having sex before marriage these statistics exclude illegal sexual intercourse within marriage. This number is increasing
---(And the servants of the Beneficent) are those who do not invoke another god with Allah, and who do not…commit fornication/adultery, for whoever does that shall receive the penalty; for him shall the torment be doubled on the day of resurrection, and therein he shall abide forever, disgraced, save him who repents and believes and does good works; those, Allah shall change their misdeeds into good works. And Allah is Forgiving, Compassionate) (Al-Furqan: 68-70).
---“There are three types of sinners that Allah will not speak to on the Day of Resurrection; neither He will purify them nor will He even look at them; rather they will suffer severe punishment: an older person who commits adultery, a king or ruler who lies to his subjects, and a poor person who acts arrogantly!” (Muslim and An-Nasa’i)
---The Prophet (peace and blessings be upon him) said, “O mankind! Beware of fornication/adultery for it entails six dire consequences: three of them relating to this world and three to the next world. As for the three that are related to this world, they are the following: it removes the glow of one’s face, brings poverty, and reduces the life-span. As for its dire consequences in the next world they are: it brings down the wrath of Allah upon the person, subjects him to terrible reckoning, and finally casts him in hell-fire” (Al-Bayhaqi).
These are examples which show that Zina is comparable to acts such as murder or at least the punishment is supposed to be. This means that majority of the population would be in hell eternally. Some may say that Muslims may ask for forgiveness but what about the others not to mention not all of Muslims will ask for forgiveness, some dont care and some dont even know.
Why is Zina compared to murder when in this world it has such less impacts and quite a lot of times (from experience with communciating with others etc) it doesnt have any bad impacts?